1<?xml version="1.0" encoding="UTF-8"?> 2<animation-list xmlns:android="http://schemas.android.com/apk/res/android" 3 android:oneshot="false"> 4 <item android:drawable="@drawable/ui_arrow_dark" android:duration="500" /> 5 <item android:drawable="@drawable/ui_arrow_light" android:duration="500" /> 6</animation-list>